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atusb/fw/mac.c: always wait for stability before changing transceiver state

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This commit is contained in:
Werner Almesberger 2013-02-20 13:05:33 -03:00
parent 945aa04d9d
commit de8bcc1925
1 changed files with 11 additions and 5 deletions
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16
atusb/fw/mac.c
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@ -106,15 +106,23 @@ static int handle_irq(void)
} }
static void change_state(uint8_t new)
{
while ((reg_read(REG_TRX_STATUS) & TRX_STATUS_MASK) ==
TRX_STATUS_TRANSITION);
reg_write(REG_TRX_STATE, new);
}
int mac_rx(int on) int mac_rx(int on)
{ {
if (on) { if (on) {
mac_irq = handle_irq; mac_irq = handle_irq;
reg_read(REG_IRQ_STATUS); reg_read(REG_IRQ_STATUS);
reg_write(REG_TRX_STATE, TRX_CMD_RX_ON); change_state(TRX_CMD_RX_ON);
} else { } else {
mac_irq = NULL; mac_irq = NULL;
reg_write(REG_TRX_STATE, TRX_CMD_FORCE_TRX_OFF); change_state(TRX_CMD_FORCE_TRX_OFF);
txing = 0; txing = 0;
} }
return 1; return 1;
@ -153,9 +161,7 @@ static void do_tx(void *user)
* Wait until we reach BUSY_TX, so that we command the transition to * Wait until we reach BUSY_TX, so that we command the transition to
* RX_ON which will be executed upon TX completion. * RX_ON which will be executed upon TX completion.
*/ */
while ((reg_read(REG_TRX_STATUS) & TRX_STATUS_MASK) == change_state(TRX_CMD_RX_ON);
TRX_STATUS_TRANSITION);
reg_write(REG_TRX_STATE, TRX_CMD_RX_ON);
} }